Electonic Smart Glasses

Electonic Smart Glasses

 THAT AUTOMATICALLY FOCUS ON WHAT YOU SEE..
  As people age, the lens loses its ability to change focus, which is why many people ultimately require reading glasses or bifocals to see object up close and regular eyeglasses to see far away.  Today, with advancement of technologies, the days of wearing bifocals or constantly swapping reading glasses may soon be over. Now new smart glasses are developed by scientists and researchers at University of Utah in the U.S, including one of the Indian origin, that can be automatically adjust the focus on what a person is seeing, whether it is far away or close. Most people who gets reading glasses have to put them on and take them off all the time while reading but with this smart glasses we don’t need to do that anymore, once these glasses are put on its always clear.

Let’s see how these smart glasses’ works.           These smart glasses contain lenses made of glycerine, a thick colourless liquid enclosed by flexible rubber like membranes in the front and back. These rear membranes in each lens is connected to a series of three mechanical actuators

 that push the membrane back and forth like a transparent piston, changing the curvature of the liquid lens and the focal length between the lens and the eye. The focal length of the glasses depends on the shape of the lens, so to change the optical power we actually have to change the membrane shape. The lenses are placed in special eyeglass frames

with electronic and a battery to control and the power actuators. In the bridge of the glasses is a distance meter that measures the distance from the glasses to an object via pulses of infrared light. So when the wearer looks at an object, the meter instantly measures the distance and tells the actuators how to curve the lenses. If the user then sees another object that is closer, the distance meter readjust in just 14 milliseconds and tells the actuators to reshape the lens for farsightedness.

Editor: Meghna Verma